Arctan Calculator
Result
Arctan Calculator (Inverse Tangent) The Arctan Calculator finds the inverse tangent of any real number, returning the angle in radians and degrees. The formula used is: arctan(x) = the angle whose tangent is x, in the range (-90°, 90°). — free online calculator.
Formula
- Arctan Calculator calculates its result from Value. It uses the formula arctan(x) = inverse tangent. Change any input to recalculate the result instantly.
- The main inputs are Value. Enter them in the units and format shown in the calculator.
- Keep comparable quantities in compatible units whenever the formula combines or compares them.
- Changing any input above recalculates the result with the same calculation engine used by this page.
Example: Arctan
- Value: 1
Using Value = 1, the calculated result is 1.
Sample result: Calculating…
Frequently asked questions
What does the Arctan calculate?
Arctan Calculator (Inverse Tangent) The Arctan Calculator finds the inverse tangent of any real number, returning the angle in radians and degrees. The formula used is: arctan(x) = the angle whose tangent is x, in the range (-90°, 90°). — free online calculator.
Which values should I enter?
Enter Value using the units and format shown beside each field.
What formula does this calculator use?
The calculator uses the following relationship: arctan(x) = inverse tangent.
Why might my result differ from another source?
Results can differ when another source uses different units, rounding rules, conventions or assumptions. Compare the inputs and definitions before comparing results.
Does the result update automatically?
Yes. Changing an input updates the result using the same calculation engine shown on this page.